.navBar {
  width: 100%;
  height: 60px;
  line-height: 60px;
  background-color: #54dead;
  padding: 0 100px;
  color: #413e3e;
  font-size: 25px;
  box-sizing: border-box;
  position: fixed;
  left: 0;
  top: 0;
}
.navBar .left_title {
  float: left;
}
.navBar .right_msg {
  float: right;
  cursor: pointer;
  user-select: none;
  font-size: 18px;
}
.navBar .right_msg span {
  margin: 0 15px;
}
.navBar .right_msg img {
  width: 35px;
  border-radius: 50%;
}
.navBar .right_msg .time {
  color: #413e3e;
}
.mainBody {
  width: 100%;
  color: #fff;
}
.mainBody .leftaside {
  width: 220px;
  height: 100%;
  background: linear-gradient(to bottom, #2c3e50 0%, #3498db 100%);
  position: fixed;
  left: 0;
  top: 60px;
}
.mainBody .leftaside .userMesg {
  text-align: center;
}
.mainBody .leftaside .userMesg img {
  width: 80px;
  border: 5px solid #bfa742;
  display: block;
  margin: 10px auto;
}
.mainBody .leftaside .list {
  margin-top: 15px;
}
.mainBody .leftaside .list li span {
  padding: 0  10px;
  border-left: 4px solid transparent;
  height: 40px;
  line-height: 40px;
  display: block;
  user-select: none;
}
.mainBody .leftaside .list li span:hover {
  background-color: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  border-left: 4px solid #2fb9d4;
}
.mainBody .leftaside .list li span i {
  margin-right: 10px;
}
.mainBody .leftaside .list li span em {
  line-height: 40px;
  margin-top: 20px;
}
.mainBody .leftaside .list li span.active {
  background-color: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  border-left: 4px solid #2fb9d4;
}
.mainBody .leftaside .list li .content {
  height: 0;
  overflow: hidden;
}
.mainBody .leftaside .list li .item {
  padding-left: 30px;
  height: 40px;
  line-height: 40px;
  display: block;
  color: #fff;
}
.mainBody .leftaside .list li .item:hover {
  color: #2fb9d4;
  cursor: pointer;
  text-decoration: none;
}
.mainBody .rightMain {
  position: fixed;
  left: 220px;
  top: 60px;
  bottom: 0;
  right: 0;
  box-sizing: border-box;
}
.mainBody .rightMain .mainBox {
  width: 100%;
  height: 100%;
  border: 0 none;
  outline: none;
}
